在MFC中检测模式对话框 [英] Detecting modal dialogs in MFC

问题描述

如何以编程方式检测我的MFC应用程序当前是否正在显示模式对话框或属性表?目前，我正在使用以下内容，但我认为代码还会触发无模式对话框.

How can I programmatically detect if my MFC application currently is displaying a modal dialog or property sheet? Currently I'm using the following, but I feel that the code also triggers for modeless dialogs.

bool HasModalDialog(const CWnd* pWnd)
{
   const CWnd* pChildWnd = pWnd ? pWnd->GetNextWindow(GW_HWNDPREV) : NULL;
   while (pChildWnd)
   {
      if (pWnd == pChildWnd->GetTopLevelParent() &&
         (pChildWnd->IsKindOf(RUNTIME_CLASS(CDialog)) ||
         pChildWnd->IsKindOf(RUNTIME_CLASS(CPropertySheet))))
      {
         return true;
      }

      pChildWnd = pChildWnd->GetNextWindow(GW_HWNDPREV);
   }

   return false;
}

用法:

HasModalDialog(AfxGetMainWnd())

有人发现模态对话框的另一种方法吗?

Anyone got a alternative way of detecting modal dialogs?

推荐答案

您是否尝试过

Have you tried CWnd::GetLastActivePopup?

我还没有测试它是否仅适用于模式对话框.

I haven't tested this to see if it'll work for modal dialogs only.

根据 Raymond Chen ，GetLastActivePopup应该返回当前的活动模式对话框.

Edit 1: According to Raymond Chen, GetLastActivePopup should return the current active modal dialog.

也许检索当前模式窗口的另一种方法是修改代码以检查禁用的父/所有者-模式对话框应始终

Edit 2: Perhaps another method to retrieve the current modal window would be to modify your code to check for a disabled parent/owner - modal dialogs should always disable their owner before displaying.

这篇关于在MFC中检测模式对话框的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！